H12WD4850 Crydom Company, H12WD4850 Datasheet - Page 3

• Manufacturer Part Number: H12WD4850
• Description: Relay; SSR; Zero-Switching; Cur-Rtg 50A; Ctrl-V 4-32DC; Vol-Rtg 48-660AC; Pnl-Mnt
• Manufacturer: Crydom Company

Specifications of H12WD4850

• Brand/series: H12WD Series
• Current, Leakage, Off-state: 1 mA (RMS)
• Current, Rating: 50 A
• Current, Surge: 625 Apeak
• Dielectric Strength: 4000 V (RMS)
• Dimensions: 2.30 in. L x 1.80 in. W x 0.90 in. H
• Function: Zero-Switching
• Mounting Type: Panel
• Number Of Pins: 4
• Relay Type: Solid State
• Resistance, Thermal, Junction To Case: 0.63 °C⁄W
• Standards: UL, CSA, VDE, CE
• Temperature, Ambient, Maximum: 80 °C
• Temperature, Ambient, Minimum: -40 °C
• Termination: Saddle Clamp
• Transient Overvoltage: 1200 Vpeak
• Voltage, Control: 32 VDC
• Voltage, Rating: 660 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

OUTPUT SPECIFICATIONS 1
Operating Voltage (47-63 Hz) [Vrms]
Max. Load Current
Min. Load Current, [mArms]
Transient Overvoltage [Vpk]
Max. Surge Current, (16.6ms) [Apk]
Max. On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (R θ JC ) [°C/W]
Maximum I 2 t for Fusing, (8.3 msec.) [A 2 sec]
Max. Off-State Leakage Current @ Rated Voltage [mArms]
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec]
Max. Turn-On Time
Max. Turn-Off Time
Power Factor (Min.) with Max. Load
INPUT SPECIFICATIONS 1
Control Voltage Range
Max. Turn-On Voltage
Min. Turn-Off Voltage
Nominal Input Impedance
Typical Input Current
GENERAL NOTES
1
2
3
4
5
6
SERIES H12WD.
Rev. 052307
PAGE 1 OF 3
All parameters at 25°C unless otherwise specified.
Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
Heat sinking required, for derating curves see page 2.
Turn-on time for DC control random turn-on versions is 0.02 msec.
Input circuitry incorporates active current limiter.
Compliant only.
3
4
[Arms]
M O D E L N U M B E R S
2
• 1200 Volt Blocking
• Panel Mount
• Up to 660 Vac
• Zero Voltage and Random
• SCR Output
• Integrated Overvoltage
Protection by Automatic
Self Turn-On (Suffix P)
Turn-On
H12WD4825
1/2 Cycle
1/2 Cycle
1200
48-660
1.02
150
250
260
1.6
500
1.0
0.5
25
H12WD4850
1/2 Cycle
1/2 Cycle
1200
1620
48-660
150
625
1.6
500
1.0
0.5
.63
50
15 mA @ 5 Vdc
4-32 Vdc
See Note 5
© 2007 CRYDOM Inc., Specifications subject to change without notice.
4.0 Vdc
1.0 Vdc
H12WD4875
Series
25-125Amp • 480 Vac - AC OUTPUT
48-660
1/2 Cycle
1/2 Cycle
High voltage relays use IC driven cir-
cuits for switching loads up to 660
VAC. All models come with 1200
Volts blocking.
Type H12WD is a snubberless
(reduced leakage current).
Manufactured in Crydom’s ISO 9001
Certified facility for optimum product
performance and reliability.
1200
1000
150
4150
500
75
1.6
.31
1.0
0.5
5
H12WD4890
1/2 Cycle
1/2 Cycle
48-660
H12WD
1200
1200
150
6000
500
90
1.6
.28
1.0
0.5
H12WD48125
1/2 Cycle
1/2 Cycle
48-660
1750
1200
12700
150
125
500
1.7
.22
1.0
0.5
6